China Surpasses Russia in Nuclear Submarine Fleet
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The United States is increasingly focused on the growing capabilities of China’s submarine fleet and the implications for undersea warfare, as well as the rising challenge from Russia. This shift is prompting adjustments to U.S. naval posture, anti-submarine warfare tactics, and force readiness.
China’s Naval Expansion
China possesses the largest navy in the world by number of hulls, and is rapidly modernizing its submarine fleet, narrowing the gap with the United States. As of 2023, the People’s Liberation army Navy (PLAN) operated approximately 65-75 submarines, including nuclear-powered ballistic missile submarines (SSBNs), nuclear-powered attack submarines (SSNs), and conventional diesel-electric submarines (SSKs).
This expansion isn’t merely quantitative; China is investing heavily in quieter, more advanced submarine designs. The Type 09III (Jin-class) SSBN and Type 09IV (Qin-class) SSN represent significant advancements in Chinese submarine technology.The 2023 Department of Defense report on China’s military power notes that China is expected to have at least six Type 09IV SSNs operational by the early 2030s.
Example: In November 2023, the U.S. Naval Institute reported on the commissioning of the CNS Henan (HNL-432),a Type 09IV SSN,highlighting China’s continued progress in submarine construction.USNI News Report
U.S. Anti-Submarine Warfare (ASW) Capabilities
Anti-submarine warfare is a critical component of maintaining naval dominance, and the increasing sophistication of Chinese and Russian submarines is challenging U.S. ASW capabilities. The U.S.Navy relies on a layered approach to ASW, including fixed underwater sensors (like the SOSUS network), surface ships equipped with sonar, and maritime patrol aircraft.
However, advancements in submarine quieting technology, coupled with the vastness of the ocean, make detecting and tracking modern submarines increasingly difficult. The Congressional Budget Office (CBO) has highlighted the need for continued investment in ASW technologies, including unmanned underwater vehicles (UUVs) and advanced sonar systems.
Detail: The CBO’s 2023 report, “The Navy’s Fiscal Year 2024 Budget request: Background and Issues for Congress,” details the challenges facing the Navy in maintaining its ASW advantage, citing the need for increased funding for research and development. CBO Report
Impact on U.S. Naval Posture
The growing undersea threat is prompting the U.S. Navy to re-evaluate its naval posture and prioritize undersea warfare. Navy leaders have publicly acknowledged that U.S. dominance in undersea warfare is at risk.
This includes increased emphasis on training and exercises focused on ASW, as well as the development of new technologies and operational concepts. The Navy is also exploring the use of distributed maritime operations (DMO) to complicate the task of enemy submarines. DMO involves dispersing naval forces across